CN113329423B - Network connection control method and device, terminal equipment and computer storage medium - Google Patents
Network connection control method and device, terminal equipment and computer storage medium Download PDFInfo
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- CN113329423B CN113329423B CN202110559778.6A CN202110559778A CN113329423B CN 113329423 B CN113329423 B CN 113329423B CN 202110559778 A CN202110559778 A CN 202110559778A CN 113329423 B CN113329423 B CN 113329423B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
Embodiments of the present application provide a method and an apparatus for controlling network connection, a terminal device, and a computer storage medium, which can dynamically update a UL-MIMO state and reduce power consumption under a network connection condition. The method comprises the following steps: under the condition that a first preset condition is met, determining that the uplink-multiple input and output capability is in a closed state; if the network equipment is in the first system network, the registration request is initiated again so as to report the closing state of the uplink-multiple input and output capacity to the network equipment; the first system network is a network with power consumption larger than that of the second system network.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for controlling network connection, a terminal device, and a computer storage medium.
Background
Compared with Long Term Evolution (LTE) technology, a fifth Generation mobile communication network (5th Generation, 5G) has higher frequency, larger bandwidth, and more flexible subframe structure. 5G has two deployment schemes of Non-independent Networking (NSA) and independent networking (SA); the NSA is a 5G network architecture deployed by attaching to a fourth Generation mobile communication technology (4th Generation, 4G) base station for modification, and the SA is a 5G network architecture constructed by constructing a brand new 5G base station and deploying independent of a 4G network.
Currently, when a terminal device has Uplink-Multiple Input and Multiple Output (UL-MIMO) capability, the terminal device needs to report the UL-MIMO capability to a network device, and the network device determines when and when to allocate MIMO resources to the terminal device. In this way, the terminal device always uses MIMO resources, resulting in excessive power consumption of the terminal device.
Disclosure of Invention
Embodiments of the present application provide a method and an apparatus for controlling network connection, a terminal device, and a computer storage medium, which can dynamically update a UL-MIMO state and reduce power consumption under a network connection condition.
The technical scheme of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a method for controlling network connection, which is applied to a terminal device, and the method includes:
under the condition that a first preset condition is met, determining that the uplink-multiple input and output capability is in a closed state;
if the network equipment is in the first standard network, the registration request is initiated again so as to report the closing state of the uplink-multiple input and output capability to the network equipment; the first system network is a network with power consumption larger than that of the second system network.
In the above method, the first preset condition includes at least one of:
the electric quantity is smaller than a preset electric quantity threshold value;
the temperature is higher than a preset temperature threshold value;
the transmission quality of the network is less than a preset transmission quality threshold value;
the data flow is smaller than a preset flow threshold;
the screen state is a screen-off state;
and accessing a wireless high-fidelity Wi-Fi network.
In the above method, the method further comprises:
and if the network is switched from the second system network to the first system network, reporting the closing state of the uplink-multiple input and output capability to network equipment under the condition of initiating a registration request to the first system network.
In the above method, the method further comprises:
determining the closed state as the open state under the condition that the change from the first preset condition to the second preset condition is detected;
and if the network equipment is in the first standard network, initiating the registration request so as to report the starting state of the uplink-multiple input and output capacity to the network equipment.
In the above method, the second preset condition includes at least one of:
the electric quantity is greater than or equal to a preset electric quantity threshold value;
the temperature is less than or equal to a preset temperature threshold;
the transmission quality of the network is greater than or equal to a preset transmission quality threshold value;
the data flow is greater than or equal to a preset flow threshold;
the screen state is a bright screen state;
no Wi-Fi network is accessed.
In the above method, the method further comprises:
and if the network of the second system is switched to the network of the first system, initiating a registration request so as to report the starting state of the uplink-multiple input and output capability to the network equipment.
In the method, the first standard network is an independent networking SA network;
the second standard network is any one of the following networks:
second generation mobile communication networks, third generation mobile communication networks, and long term evolution LTE networks.
In a second aspect, an embodiment of the present application further provides a network connection control apparatus, where the network connection control apparatus includes a determining unit and a network connection unit; wherein the content of the first and second substances,
the determining unit is used for determining that the uplink-multiple input and output capability is in an off state under the condition that a first preset condition is met;
the network connection unit is configured to reinitiate a registration request if the network connection unit is in the first-standard network, so as to report a shutdown state of the uplink-mimo capability to the network device; the first system network is a network with power consumption larger than that of the second system network.
In the above apparatus, the first preset condition includes at least one of:
the electric quantity is smaller than a preset electric quantity threshold value;
the temperature is higher than a preset temperature threshold;
the transmission quality of the network is less than a preset transmission quality threshold value;
the data flow is smaller than a preset flow threshold;
the screen state is a screen-off state;
and accessing a wireless high-fidelity Wi-Fi network.
In the above apparatus, the network connection unit is further configured to report, if the network device is switched from the second-standard network to the first-standard network, a shutdown state of the uplink-mimo capability to the network device when a registration request is initiated to the first-standard network.
In the above apparatus, the determining unit is further configured to determine the off state as the on state if it is detected that the first preset condition is satisfied and the second preset condition is satisfied;
the network connection unit is further configured to initiate the registration request if the network connection unit is in the first-standard network, so as to report an on state of an uplink-mimo capability to the network device.
In the above apparatus, the second preset condition includes at least one of:
the electric quantity is greater than or equal to a preset electric quantity threshold value;
the temperature is less than or equal to a preset temperature threshold;
the transmission quality of the network is greater than or equal to a preset transmission quality threshold value;
the data flow is greater than or equal to a preset flow threshold;
the screen state is a bright screen state;
no Wi-Fi network is accessed.
In the above apparatus, the network connection unit is further configured to initiate a registration request if the network of the second system is switched to the network of the first system, so as to report an on state of the uplink-mimo capability to the network device.
In the device, the first standard network is an independent networking SA network;
the second standard network is any one of the following networks:
second generation mobile communication networks, third generation mobile communication networks, and long term evolution LTE networks.
In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device includes a memory and a processor; wherein the content of the first and second substances,
the memory for storing a computer program operable on the processor;
the processor is configured to execute the method for controlling network connection according to the first aspect when the computer program is executed.
In a fourth aspect, an embodiment of the present application provides a computer storage medium, where a computer program is stored, and the computer program, when executed by at least one processor, implements the method for controlling network connection according to the first aspect.
According to the network connection control method and device, the terminal device and the computer storage medium provided by the embodiment of the application, the terminal device can close the uplink-multiple input and output capability of the terminal device under the condition that the first preset condition is detected to be met, so that the power consumption waste of the terminal is reduced; if the terminal equipment is in the first-system network with higher power consumption, the registration request is initiated again, and the closed state updated by the uplink-multiple input and output capability is reported to the first-system network again, so that the first-system network allocates new network resources to the terminal equipment again, for example, network resources with lower power consumption, and the terminal equipment can further utilize the newly allocated network resources to perform connection of the first-system network again correspondingly. Therefore, the state of the UL-MIMO can be dynamically updated under the condition of network connection, and the power consumption of the terminal equipment is reduced.
Drawings
Fig. 1 is a schematic diagram of an exemplary communication system architecture provided in an embodiment of the present application;
fig. 2 is a first flowchart illustrating a method for controlling network connection according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a reporting format of terminal capability information according to an embodiment of the present application;
fig. 4 is a second flowchart illustrating a network connection control method according to an embodiment of the present application;
fig. 5 is a third schematic flowchart of a method for controlling network connection according to an embodiment of the present application;
fig. 6 is a fourth schematic flowchart of a method for controlling network connection according to an embodiment of the present application;
fig. 7 is a fifth flowchart illustrating a method for controlling network connection according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a network connection control device according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Detailed Description
So that the manner in which the features and elements of the present embodiments can be understood in detail, a more particular description of the embodiments, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the application.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. It should also be noted that reference to the terms "first \ second \ third" in the embodiments of the present application is only used for distinguishing similar objects and does not represent a specific ordering for the objects, and it should be understood that "first \ second \ third" may be interchanged with a specific order or sequence where possible so that the embodiments of the present application described herein can be implemented in an order other than that shown or described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Referring to fig. 1, a schematic diagram of an exemplary communication system architecture provided in an embodiment of the present application is shown. As shown in fig. 1, a communication system provided in the embodiment of the present application includes a network device and a terminal device, and a communication connection is established between the terminal device and the network device. Optionally, the terminal device may establish a communication connection with the network device through a fourth generation, a fifth generation, and other mobile communication technologies, and a communication connection manner of the terminal device and the network device is not limited in this embodiment of the application.
In some embodiments, the Network device may also be referred to as an Access Network device, and the Network device may be a Base Transceiver Station (BTS) in a Global System for Mobile Communications (GSM) System or a Code Division Multiple Access (CDMA) System, a Base Station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) System, an evolved node b (eNB, or eNodeB) in an LTE System, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a Network device in a relay Station, an Access point, a vehicle-mounted device, a wearable device, and a Network device in a 5G Network or a Network device in a future-evolution Public Land Mobile Network (PLMN) Network, such as a New air interface (Radio), NR) transmission point (TRP or TP) in the system, base station (gNB) in the NR system, one or a set (including multiple antenna panels) of antenna panels of base stations in the 5G system, etc. The embodiment of the present application is not particularly limited to this.
In some embodiments, the terminal device may be referred to as a user device. A terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a drone device, a terminal device in a 5G network or a terminal device in a PLMN for future evolution, and the like, which is not limited in the embodiments of the present application.
In general, there may be multiple network devices in the vicinity of the terminal device, and the terminal device may select a cell to camp on according to a service quality value (e.g., signal quality) of a cell in which each network device is located, and the terminal device typically camps on a cell with better service quality, where there may be a difference in the service quality values of the cells in which different network devices are located. As shown in fig. 1, it is assumed that there are three network devices, which are a network device 1, a network device 2, and a network device 3, respectively, and the terminal device resides in a cell 1 where the network device 1 is located, at this time, the cell 1 is a serving cell of the terminal device, both the cell 2 where the network device 2 is located and the cell 3 where the network device 3 is located are adjacent to the cell 1, that is, the cell 2 and the cell 3 are adjacent cells (also referred to as "adjacent cells") of the cell 1.
When the terminal device is powered on or opens a network data connection, a Modem (Modem) in the terminal device reports Capability Information (UE Capability Information) of the terminal device to the network device, such as a gNB, and if the terminal device supports UL-MIMO, the network device is notified that the terminal device has UL-MIMO Capability through the reporting of the Capability Information. In this way, the network device can allocate MIMO resources to the terminal device as needed. However, in the related art, after the terminal device reports the UL-MIMO capability to the network device, it is completely determined by the network device whether and when to allocate MIMO resources for the terminal device. Therefore, in some application scenarios where the data traffic demand is low and a MIMO mode is not needed for data transmission, the terminal device with UL-MIMO capability may still be allocated MIMO resources by the network device, which results in the terminal device turning on the MIMO capability and unnecessarily increasing the power consumption of the terminal device. In some embodiments, the terminal may consume more power if UL-MIMO is turned on, depending on the meter test results. Especially in weak signals, the terminal may consume about 20% more power consumption.
The embodiment of the application provides a network connection control method, and a terminal device detects whether the terminal device meets a first preset condition according to the state and flow demand of the terminal device, and further determines that UL-MIMO is in a closed state when the terminal device detects that the terminal device meets the first preset condition. And if the terminal equipment is in the first system network with higher power consumption, re-initiating the registration request so as to re-perform the connection of the first system network by utilizing the network resources re-distributed for the terminal equipment by the first system network according to the closing state of the uplink-multiple input and output capability after reporting the closing state of the UL-MIMO. In this way, the terminal device may be able to dynamically update the UL-MIMO state under the condition of network connection, reducing the power consumption of the terminal device.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings. The execution subject of the embodiment of the present application is a network connection control device or a terminal device integrated with the network connection control device.
An embodiment of the present application provides a method for controlling network connection, which may be applied to the terminal device shown in fig. 1. Referring to fig. 2, a flowchart of a method for controlling network connection may include S101 and S102, as follows:
s101, under the condition that a first preset condition is met, determining that the uplink-multiple input and output capacity is in a closed state.
In the embodiment of the application, the terminal device needs to support a first-standard network and a second-standard network. In some embodiments, a first-system network may refer to a communication network that consumes more power than a second-system network. In some embodiments, the first-standard network includes, but is not limited to, an independent networking SA network, or a next generation communication network. The second standard network comprises any one of the following networks: second generation mobile communication networks, third generation mobile communication networks, and long term evolution LTE networks. Or, the first standard network may also include a long term evolution LTE network, and correspondingly, the second standard network may include a second generation mobile communication network or a third generation mobile communication network, etc. with power consumption smaller than that of the LTE network. That is to say, as long as there is a difference in power consumption between the communication networks of at least two systems that can be supported by the terminal device, the method in the embodiment of the present application may be applied to perform power consumption optimization.
In the embodiment of the present application, the terminal device itself needs to support uplink-multiple input and output (i.e. UL-MIMO) capability. Here, MIMO capability refers to spatial multiplexing, and the capability of transmitting multiple data streams using the same time and frequency resources to increase data transmission throughput, and UL-MIMO may refer to MIMO capability implemented on the uplink of a terminal device.
In the embodiment of the present application, the terminal device may determine whether the state of the terminal device needs to be optimized by detecting whether the terminal device meets the first preset condition, for example, whether the resource requirement is high, whether the network quality is good, whether the current power consumption is too high, and the like, so as to determine whether to execute the network connection control method provided in the embodiment of the present application. The state of the terminal device to be optimized may include a low power level, a high temperature, a poor transmission quality of a currently-resident network, and a state with a low resource requirement, such as a screen-off state, a state of accessing to a Wireless Fidelity (Wi-Fi) network, or a state where a data traffic is smaller than a preset traffic threshold, which is not limited in the embodiment of the present application.
In the embodiment of the application, when detecting that the terminal device meets the first preset condition, the terminal device indicates that the current resource demand of the terminal device is low, and the terminal device can determine that the UL-MIMO capability of the terminal device is in a closed state.
In some embodiments, the determining, by the terminal device, the UL-MIMO capability as the off state may include: and sending a UL-MIMO capability closing control instruction to the modem of the terminal device to inform the modem to configure the UL-MIMO capability in a closing state, and further closing the UL-MIMO capability of the terminal device by the modem according to the closing control instruction.
In an embodiment of the present application, whether the terminal device satisfies the first preset condition may be monitored, so as to determine whether the terminal device executes the network connection control method provided in the embodiment of the present application. The first preset condition includes at least one of:
the electric quantity of the terminal equipment is smaller than a preset electric quantity threshold value;
the temperature of the terminal equipment is higher than a preset temperature threshold value;
the transmission quality of the network where the terminal device resides is less than a preset transmission quality threshold value;
the data flow of the terminal equipment is smaller than a preset flow threshold;
the screen state of the terminal equipment is a screen-off state;
the terminal equipment accesses the Wi-Fi network.
In the embodiment of the application, when the electric quantity of the terminal device is smaller than the preset electric quantity threshold value, that is, when the electric quantity of the terminal device is low, in order to prevent the terminal device from being shut down due to too low electric quantity, the terminal device can perform power consumption control according to the method provided by the embodiment of the application, so that the power consumption of the terminal device is reduced, and the cruising ability is improved. For example, the preset charge threshold may be set to 10%, and is not limited herein.
In the embodiment of the application, when the temperature of the terminal device is higher than the preset temperature threshold, that is, when the temperature of the terminal device is too high, in order to prevent the terminal device from damaging the hardware structure due to the too high temperature, the terminal device may perform power consumption control according to the method provided by the embodiment of the application, so as to reduce the power consumption of the terminal device, thereby achieving the purpose of reducing the temperature. For example, the preset temperature threshold may be set to 43 degrees celsius (° c).
It should be noted that the preset electric quantity threshold and the preset temperature threshold may be determined according to a result of a simulation experiment, and configured for each terminal device before the terminal device leaves a factory. The preset electric quantity threshold and the preset temperature threshold can also be set by a user according to the requirement of the user, and the setting mode of the preset electric quantity threshold and the preset temperature threshold is not limited in the embodiment of the application.
In the embodiment of the application, the terminal device may periodically measure the service quality of the serving cell corresponding to the terminal device in the first standard network, or may measure the service quality of the serving cell in a specific time period; for example, the terminal device may select a time period with less information interaction to measure the service quality of the serving cell, such as a certain time period in the morning and at midnight. The transmission quality of the network is a parameter currently residing in a serving cell of the LTE network, and all parameters that can reflect the transmission quality of the serving cell may be used as the transmission quality of the network in the embodiment of the present application. For example, the transmission quality of the network may be at least one of the following parameters: the signal quality, the packet loss rate, the block error rate, the reference signal received power, the reference signal received quality, the signal delay, the signal jitter, and the like of the serving cell, and the transmission quality of the network may also be a value obtained by performing specific operations on the above parameters, for example, the transmission quality of the network may be an R value, the R value is a sum of the reference signal received power of the serving cell and a first set value, and the first set value may be a preset constant value; for another example, the transmission quality of the network may be an S value, where the S value is a difference between the reference signal received power of the serving cell and a second set value, and the second set value may be a minimum received strength of the reference signal received power of the serving cell.
In some embodiments, the transmission quality of the network may also be measured by a Block Error Rate (BLER) indicator and a transmission delay; accordingly, the transmission quality of the network is smaller than the preset transmission quality threshold, and may include at least one of the following: the BLER of the network is higher than the threshold value of the preset block error rate, and the transmission delay of the network is larger than the threshold value of the preset delay. Illustratively, the preset block error rate threshold may be 10%.
In the embodiment of the application, when the data flow on the terminal device is smaller than the preset flow threshold, for example, when the data volume currently uploaded or downloaded by the terminal device is smaller than the preset flow threshold, it indicates that the terminal does not currently have a large number of data transmission tasks, and does not need to rely on the MIMO capability for data transmission, and the MIMO capability can be turned off to save power consumption.
In the embodiment of the application, when the screen state of the terminal device is switched from the bright screen state to the off screen state, it can be determined that the user does not have high requirements for the data service currently, and in the scene, the terminal device can perform power consumption control according to the method provided by the embodiment of the application, so that the power consumption of the terminal device is reduced, and the cruising ability is improved.
In the embodiment of the application, after the terminal equipment is connected with the Wi-Fi network, the data service can be transmitted through the Wi-Fi network, and the data service transmission does not need to be performed by using a high-power-consumption communication network. Therefore, after the terminal equipment accesses the Wi-Fi network, power consumption can be controlled according to the method provided by the embodiment of the application, so that the power consumption of the terminal equipment is reduced, and the cruising ability is improved.
In some embodiments, the terminal device may detect whether it satisfies the first preset condition according to a preset time period. The terminal equipment can also detect whether the terminal equipment meets a first preset condition or not when any one of electric quantity, temperature, background equipment state, signal intensity and data flow monitoring changes. The embodiment of the present application does not limit this.
Therefore, in the embodiment of the application, the terminal device can detect the power consumption optimization state of the terminal device in different scenes corresponding to the first preset condition, and then the power consumption control of the terminal device is automatically triggered. Therefore, the state of UL-MIMO can be dynamically updated, and the power consumption of the terminal equipment is reduced.
S102, if the network equipment is in the first system network, the registration request is initiated again so as to report the closing state of the uplink-multiple input and output capability to the network equipment; the first system network is a network with power consumption larger than that of the second system network.
In this embodiment of the present application, if the terminal device is in a first system network, such as a 5G SA network, and under a condition that the UL-MIMO capability of the terminal device is updated, such as the terminal device updates the UL-MIMO capability in a modem to a closed state, the terminal device needs to reinitiate a registration request to the first system network again, so as to report the update of the terminal capability information, that is, the closed state of the UL-MIMO capability, to the network device in the first system network, and according to a response message of the network device in the first system network to the closed state of the UL-MIMO capability, re-register to the first system network, and establish a connection with the first system network.
In some embodiments, the interactive process of the terminal device initiating the registration request to the network of the first standard again may include: the terminal equipment initiates a Registration request to a first standard network; after receiving the Registration request, the first standard network sends a UeCapabilityEnquiry message to the terminal equipment to inquire the capability supported by the terminal and to inquire the capability of the UE; the terminal equipment sends a UeCapabilityinformation message to the first-standard network, wherein the UeCapabilityinformation carries the capability information of the terminal equipment, and the state of UL-MIMIO is open or closed; after knowing the capability information of the terminal equipment through the UeCapabilityinformation message, the first-standard network sends a Registration accept response message to the terminal equipment to inform the terminal equipment of accepting the Registration request; after receiving the Registration accept message, the terminal device returns a Registration completion message Registration complete to the first-system network to inform that the first-system network has completed Registration.
Illustratively, the signaling interaction process can be as follows:
08:39:42.710 NR5G NAS MM5G Plain OTA Outgoing Msg Registration request
08:39:42.869 NR5G RRC OTA Packet DL_DCCH/UeCapabilityEnquiry
08:39:42.874 NR5G RRC OTA Packet UL_DCCH/UeCapabilityInformation
08:39:43.726 NR5G NAS MM5G Plain OTA Incoming Msg Registration accept
08:39:43.727 NR5G NAS MM5G Plain OTA Outgoing Msg Registration complete
in some embodiments, the capability reporting message sent by the terminal device to the network device, that is, the UeCapabilityInformation message, may be as shown in fig. 3, where fig. 3 shows an example of a data format and a specific capability value of the capability information reported by the terminal device to the network device in an uplink UL _ DCCH.
The embodiment of the application provides a network connection control method, which can detect whether the network connection meets a first preset condition according to the self state and flow demand, further close the uplink-multiple input and output capability of terminal equipment when the first preset condition is detected to be met, reduce the power consumption waste of the terminal, report the terminal capability information to a first standard network again, and register the terminal capability information to the first standard network again. Therefore, the terminal equipment can dynamically update the state of UL-MIMO under the condition of network connection, and the power consumption of the terminal equipment is reduced. In addition, the first standard network can also acquire the change of the terminal capability in time, and allocate appropriate network resources to the terminal, thereby avoiding the allocation waste of MIMO resources and achieving the effect of saving network resources.
In some embodiments, the initial UL-MIMO capability of the terminal device may be in an on state, and when it is detected that the terminal device satisfies the first preset condition, the terminal device may update its UL-MIMO capability to be in an off state, so as to save power consumption.
Based on the foregoing embodiment, in an embodiment of the present application, as shown in fig. 4, the terminal device may further perform S201 as follows:
s201, if switching is carried out from the second system network to the first system network, reporting a closing state of the uplink-multiple input and output capability to the network equipment under the condition that a registration request is initiated to the first system network.
In the embodiment of the application, under the condition that the terminal device detects that the terminal device meets the first preset condition, if the terminal device is in the second-standard network, the UL-MIMO capability can be updated to be in a closed state in a modem of the terminal device, so that power consumption is saved. And reporting the updating of the UL-MIMO capability to network equipment of the first system network when switching from the second system network to the first system network, so as to re-register and connect to the first system network based on the closing state of the UL-MIMO capability.
In the embodiment of the application, under the condition that the terminal equipment initiates switching from the second system network to the first system network, the terminal equipment needs to initiate a registration request for the first system network to start a registration process to the first system network because the power consumption of the first system network is greater than that of the second system network; reporting the closing state of the UL-MIMO capability in the registration process of the network of the first standard; and then according to the response message of the first system network aiming at the closing state of the UL-MIMO capability, completing the registration of the first system network and establishing the connection with the first system network.
It can be understood that, in the embodiment of the present application, the UL-MIMO capability state updated by the terminal device in the second-standard network may be notified to the first-standard network in time when switching to the first-standard network, so that the UL-MIMO state of the terminal is dynamically updated under the condition of network connection, and the power consumption of the terminal device is reduced.
Here, it should be noted that, under the condition that the first preset condition is satisfied, if the terminal device is in a non-network or non-service state, the terminal device may notify its modem to update the UL-MIMO capability to the off state, and when a registration process needs to be started after returning to the network of the first system from the non-network or non-service state, the terminal device reports the UL-MIMO capability in the off state to the network device of the network of the first system.
Based on the foregoing embodiment, in an embodiment of the present application, after S101, the terminal device may further perform S301-S302, as shown in fig. 5, as follows:
s301, under the condition that the first preset condition is detected to be met, the closed state is determined to be the opened state.
In the embodiment of the present application, after the terminal implements the control method for network connection in the embodiment of the present application because the terminal satisfies the first preset condition, and determines that the uplink-multiple input and output capability is in the off state, if the terminal detects that the terminal changes from satisfying the first preset condition to satisfying the second preset condition in subsequent detection, it indicates that the power consumption state or the network transmission quality of the terminal is improved, or the resource requirement is significantly increased, and the UL-MIMO capability can be recovered to improve the network interaction performance of the terminal, thereby providing better data transmission capability. Accordingly, the terminal device may determine the UL-MIMO capability from the off state to the on state.
In some embodiments, the determining, by the terminal device, the off state of the UL-MIMO capability as the on state may include: and sending an opening control instruction of the UL-MIMO capability to the modem of the modem to inform the modem to configure the UL-MIMO capability to be in an opening state, and the modem can further update the UL-MIMO capability from the closing state to the opening state according to the opening control instruction.
In some embodiments, the second preset condition may include at least one of:
the electric quantity of the terminal equipment is greater than or equal to a preset electric quantity threshold value;
the temperature of the terminal equipment is less than or equal to a preset temperature threshold;
the transmission quality of the network where the terminal device resides is greater than or equal to a preset transmission quality threshold value;
the data flow of the terminal equipment is greater than or equal to a preset flow threshold value;
the screen state of the terminal equipment is a bright screen state;
the terminal device does not access the Wi-Fi network.
S302, if the network equipment is in the first system network, a registration request is initiated so as to report the starting state of the uplink-multiple input and output capability to the network equipment.
In this embodiment, if the terminal device is in the first-standard network, when the capability information value of the terminal is updated, for example, when the terminal device is updated from the off state to the on state, the terminal device needs to initiate a registration request to the first-standard network again, so as to report the updated uplink-mimo capability, that is, the on state of the uplink-mimo capability, to the network device, and connect with the first-standard network again.
In some embodiments, after S301, S303 may also be performed, as shown in fig. 6, as follows:
and S303, if the network is switched from the second system network to the first system network, initiating a registration request so as to report the starting state of the uplink-multiple input and output capability to the network equipment.
In the embodiment of the present application, under the condition that the terminal device recovers the UL-MIMO capability to the on state, if the terminal device is currently in the network of the second system, the terminal device may update the UL-MIMO capability from the off state to the on state in the modem.
In the embodiment of the application, in the process of switching the terminal device from the second system network to the first system network, the terminal device needs to initiate a registration request to the first system network with higher power consumption, report the open state of the UL-MIMO capability to the first system network, and then register to the first system network according to a response message of the first system network to the open state of the UL-MIMO capability to establish connection with the first system network.
In some embodiments, after receiving the on state of the UL-MIMO capability reported by the terminal device, the first-standard network correspondingly allocates uplink MIMO resources to the terminal device, so that the terminal device can utilize the uplink MIMO resources, and the network transmission speed is increased.
It can be understood that, in the embodiment of the present application, the terminal device may start the UL-MIMO capability in time to meet the network transmission requirement of the terminal under the condition that the power consumption state, the network transmission quality, or the resource requirement is recovered, so as to improve the flexibility of network connection control.
In another embodiment of the present application, based on the same inventive concept as the foregoing embodiment, refer to fig. 7, which shows a detailed flowchart of a method for controlling network connection provided in an embodiment of the present application. As shown in fig. 7, taking the power and the temperature as an example, a description of an exemplary network connection process is performed, and the detailed flow may include:
s701, starting the terminal.
In S701, the terminal device powers on and starts a network searching registration process.
S702, the terminal requests the network equipment to register the SA so as to report the UL-MIMO capability in the opening state.
In S702, the terminal device registers to the SA network, and reports the initial UL-MIMO capability of the current terminal device to the SA network as an on state. Here, SA is the first-system network.
And S703, the terminal detects whether the electric quantity is smaller than a preset electric quantity threshold value.
In S703, the terminal device detects whether the electric quantity is smaller than a preset electric quantity threshold. If the detection result is yes, that is, the power of the terminal device is too low, S705 will be executed. If the detection result of S703 is no, that is, the terminal device is not in a low power state, the process continues to execute S704, and the terminal device detects whether the temperature is greater than the preset temperature threshold.
S704, the terminal detects whether the temperature is larger than a preset temperature threshold value.
In S704, if the temperature detected in S704 is higher than the preset temperature threshold, i.e. the temperature of the terminal device is too high, S705 will be executed.
In some embodiments, if the detection result of S704 is negative, that is, the temperature of the terminal device is not higher, then according to a first preset condition, it may be further performed to continuously detect whether the transmission quality of the network where the terminal device resides is smaller than a preset transmission quality threshold; or detecting whether the screen state of the terminal equipment is a screen-off state; or detecting that the data flow of the terminal equipment is smaller than a preset flow threshold; or, whether the terminal device accesses the Wi-Fi network or not is detected, and so on, which are not listed here.
In the embodiment of the present application, the first preset conditions are in a parallel relationship, and the sequence for detecting whether the terminal satisfies the first preset conditions may not be limited to the sequence shown in fig. 7, and is specifically selected according to the actual situation, which is not limited in the embodiment of the present application.
In addition, there are many application scenarios in which the terminal device needs to perform power consumption control, and many of the scenarios have low requirements on the network rate, and the method described in the embodiment of the present application may also be applied at this time.
S705, the terminal closes the UL-MIMO capability and re-initiates the process of registering the SA to the network equipment.
In S705, when it is detected that the terminal device meets a first preset condition that the electric quantity is less than the preset electric quantity threshold, or the temperature is greater than the preset temperature threshold, the terminal device closes the UL-MIMO capability to save power consumption, re-initiates registration with the registered SA network, and re-reports a closed state of the UL-MIMO capability in the registration request.
S706, the terminal detects whether the electric quantity is larger than or equal to a preset electric quantity threshold value.
In S706, after the terminal device turns off the UL-MIMO capability to perform power consumption control, it may further continuously detect whether or not it can recover from the power consumption state to be optimized, which is characterized by the first preset condition, for example, whether or not the detected power amount is greater than or equal to the preset power amount threshold. If yes, executing S707; otherwise, the terminal equipment is still in a low power state, power consumption needs to be saved, and the terminal equipment continues to monitor the self state.
And S707, judging whether the terminal detection temperature is less than or equal to a preset temperature threshold value.
In S707, after the terminal detects that the power of the terminal is greater than or equal to the preset power threshold, it may further detect whether the power of the terminal is greater than or equal to the preset power threshold. If so, executing S708, otherwise, indicating that the terminal device is still in the high-temperature and high-power consumption state, and needing to perform power consumption control, and the terminal device continues to monitor its own state.
S708, the terminal notifies the modem to turn on UL-MIMO capability, and performs S702 to reinitiate the registration procedure for the SA network.
In S708, after the terminal device recovers from the low-power high-temperature state, the modem of the terminal device may notify the modem of turning on the UL-MIMO capability to improve the data transmission capability of the terminal device, and after the UL-MIMO capability is updated to the on state, S702 is executed to reinitiate the registration request to the SA network, so as to report the latest terminal device capability to the SA network again, and reconnect to the SA network.
To sum up, the embodiment of the present application provides a method for controlling network connection, which can detect whether a first preset condition is satisfied by itself according to a state of itself and a traffic demand, and then close an uplink-mimo capability of a terminal device when it is detected that the first preset condition is satisfied, so as to reduce power consumption waste of the terminal, and report terminal capability information to a first-standard network again, and register the terminal capability information to the first-standard network again. Therefore, the terminal equipment can dynamically update the state of UL-MIMO under the condition of network connection, and the power consumption of the terminal equipment is reduced. In addition, the first standard network can also acquire the change of the terminal capability in time, and allocate appropriate network resources to the terminal, thereby avoiding the allocation waste of MIMO resources and achieving the effect of saving network resources.
In another embodiment of the present application, based on the same inventive concept as that in the foregoing embodiment, the present application further provides a network connection control device, and the network connection control device may be integrated in the terminal device in the foregoing embodiment. Referring to fig. 8, a schematic structural diagram of a network connection control device 80 provided in the embodiment of the present application is shown.
As shown in fig. 8, the network-connected control device 80 may include: a determination unit 801 and a network connection unit 802; wherein the content of the first and second substances,
the determining unit 801 is configured to determine that the uplink-mimo capability is in an off state when a first preset condition is met;
the network connection unit 802 is configured to reinitiate a registration request if the network connection unit is in the first-standard network, so as to report a closed state of the uplink-mimo capability to a network device; the first system network is a network with power consumption larger than that of the second system network.
In some embodiments, the first preset condition comprises at least one of:
the electric quantity is smaller than a preset electric quantity threshold value;
the temperature is higher than a preset temperature threshold value;
the transmission quality of the network is less than a preset transmission quality threshold value;
the data flow is smaller than a preset flow threshold;
the screen state is a screen-off state;
and accessing a wireless high-fidelity Wi-Fi network.
In some embodiments, the network connection unit 802 is further configured to, if the network of the second system is switched to the network of the first system, report a shutdown state of the uplink-mimo capability to a network device when a registration request is initiated to the network of the first system.
In some embodiments, the determining unit 801 is further configured to determine the off state as the on state if it is detected that the first preset condition is met or the second preset condition is met;
the network connection unit 802 is further configured to initiate the registration request if the network device is in the first-standard network, so as to report an on state of the uplink-mimo capability to the network device.
In some embodiments, the second preset condition comprises at least one of:
the electric quantity is greater than or equal to a preset electric quantity threshold value;
the temperature is less than or equal to a preset temperature threshold;
the transmission quality of the network is greater than or equal to a preset transmission quality threshold value;
the data flow is greater than or equal to a preset flow threshold;
the screen state is a bright screen state;
no Wi-Fi network is accessed.
In some embodiments, the network connection unit 802 is further configured to initiate a registration request if the network of the second system is switched to the network of the first system, so as to report the on state of the uplink-multiple input and output capability to the network device.
In some embodiments, the first standard network is an independent networking SA network;
the second standard network is any one of the following networks:
second generation mobile communication networks, third generation mobile communication networks, and long term evolution LTE networks.
It should be noted that the above description of the embodiment of the apparatus, similar to the above description of the embodiment of the method, has similar beneficial effects as the embodiment of the method. For technical details not disclosed in the embodiments of the apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
It is understood that in this embodiment, a "unit" may be a part of a circuit, a part of a processor, a part of a program or software, etc., and may also be a module, or may also be non-modular. Moreover, each component in this embodiment may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware or a form of a software functional module.
Based on the understanding that the technical solution of the present embodiment essentially or a part contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Accordingly, the present embodiment provides a computer storage medium, which is a computer-readable storage medium storing a computer program that, when the computer-readable storage medium is located in the terminal device in the above embodiments, implements the steps of the network connection control method in any one of the foregoing embodiments when the computer program is executed by at least one processor.
Based on the composition of the control device 80 connected to the network and the computer-readable storage medium, refer to fig. 9, which shows a schematic structural diagram of a terminal device 90 provided in an embodiment of the present application. As shown in fig. 9, the terminal device 90 may include: a communication interface 901, a memory 902, and a processor 903; the various components are coupled together by a bus system 904. It is understood that the bus system 904 is used to enable communications among the components. The bus system 904 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 904 in figure 9. The communication interface 901 is used for receiving and sending signals in the process of receiving and sending information with other external network elements;
a memory 902 for storing a computer program operable on the processor 903;
a processor 903 for, when running the computer program, performing:
under the condition that the first preset condition is met, determining that the uplink-multiple input and output capability is in a closed state;
if the network is in the first system network, the registration request is initiated again so as to carry out connection of the first system network again after the closed state of the uplink-multiple input and output capability is reported; the first system network is a network with power consumption larger than that of the second system network.
It will be appreciated that the memory 902 in the subject embodiment can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous chained SDRAM (Synchronous link DRAM, SLDRAM), and Direct memory bus RAM (DRRAM). The memory 902 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
And the processor 903 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 903. The Processor 903 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 902, and the processor 903 reads information in the memory 902 and performs the steps of the above method in combination with hardware thereof.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Optionally, as another embodiment, the processor 903 is further configured to execute the steps of the method of any one of the preceding embodiments when running the computer program.
It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments. The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments. Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict.
The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A network connection control method is applied to terminal equipment and is characterized by comprising the following steps:
under the condition that a first preset condition is met, determining that the uplink-multiple input and output capability is in a closed state;
if the network equipment is in the first standard network, the registration request is initiated again so as to report the closing state of the uplink-multiple input and output capacity to the network equipment; the first system network is a network with power consumption larger than that of the second system network;
wherein the method further comprises:
under the condition of meeting a first preset condition, if the terminal equipment is in a non-network or non-service state, determining that the uplink-multiple input and output capability is updated to a closed state, and reporting the closed state of the uplink-multiple input and output capability to the network equipment through a registration process under the condition of switching from the non-network state to the first standard network;
the determining that the uplink-multiple input and output capability is in the off state comprises:
sending a shutdown control command of the uplink-multiple input and output capability to an own modem to inform the modem to configure the uplink-multiple input and output capability to a shutdown state.
2. The method of claim 1, wherein the first preset condition comprises at least one of:
the electric quantity is smaller than a preset electric quantity threshold value;
the temperature is higher than a preset temperature threshold;
the transmission quality of the network is less than a preset transmission quality threshold value;
the data flow is less than a preset flow threshold;
the screen state is a screen-off state;
and accessing a wireless high-fidelity Wi-Fi network.
3. The method of claim 1, further comprising:
and if the network is switched from the second system network to the first system network, reporting the closing state of the uplink-multiple input and output capability to network equipment under the condition of initiating a registration request to the first system network.
4. The method according to any one of claims 1 to 3, further comprising:
determining the closed state as the open state under the condition that the change from the first preset condition to the second preset condition is detected;
and if the network equipment is in the first standard network, initiating the registration request so as to report the starting state of the uplink-multiple input and output capacity to the network equipment.
5. The method according to claim 4, characterized in that said second preset condition comprises at least one of:
the electric quantity is greater than or equal to a preset electric quantity threshold value;
the temperature is less than or equal to a preset temperature threshold;
the transmission quality of the network is greater than or equal to a preset transmission quality threshold value;
the data flow is greater than or equal to a preset flow threshold;
the screen state is a bright screen state;
no Wi-Fi network is accessed.
6. The method of claim 4, further comprising:
and if the network of the second system is switched to the network of the first system, initiating a registration request so as to report the starting state of the uplink-multiple input and output capability to the network equipment.
7. The method according to any one of claims 1 to 3,
the first standard network is an independent networking SA network;
the second standard network is any one of the following networks:
second generation mobile communication networks, third generation mobile communication networks, and long term evolution LTE networks.
8. A network connection control apparatus includes a determination unit and a network connection unit; wherein the content of the first and second substances,
the determining unit is used for determining that the uplink-multiple input and output capability is in an off state under the condition that a first preset condition is met;
the network connection unit is configured to reinitiate a registration request if the network connection unit is in the first-standard network, so as to report a shutdown state of the uplink-mimo capability to the network device; the first system network is a network with power consumption larger than that of the second system network;
the determining unit is further configured to determine that the uplink-mimo capability is updated to a closed state if the terminal device is in a non-network or non-service state when a first preset condition is met, and report the closed state of the uplink-mimo capability to the network device through a registration process when the terminal device is switched from the non-network state to the first-standard network;
the determining unit is further configured to send a shutdown control command of the uplink-mimo capability to its own modem to notify the modem to configure the uplink-mimo capability in a shutdown state.
9. A terminal device, characterized in that the terminal device comprises a memory and a processor; wherein the content of the first and second substances,
the memory for storing a computer program operable on the processor;
the processor, when running the computer program, is configured to perform the method of any of claims 1 to 7.
10. A computer storage medium, characterized in that the computer storage medium stores a computer program which, when executed by at least one processor, implements the method of any one of claims 1 to 7.
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| PCT/CN2022/085807 WO2022242363A1 (en) | 2021-05-21 | 2022-04-08 | Network connection control method and apparatus, terminal device, and computer storage medium |
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| CN202110559778.6A CN113329423B (en) | 2021-05-21 | 2021-05-21 | Network connection control method and device, terminal equipment and computer storage medium |
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| CN113993174A (en) * | 2021-10-30 | 2022-01-28 | Oppo广东移动通信有限公司 | Method for receiving SSB, communication device and storage medium |
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| CN112637939A (en) * | 2019-10-08 | 2021-04-09 | 华为技术有限公司 | Method and device for reducing power consumption of UE |
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| Publication number | Publication date |
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| CN113329423A (en) | 2021-08-31 |
| WO2022242363A1 (en) | 2022-11-24 |
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